Anyone help me with prices?

[SoulBlazer]

I bought a used XBox 360 Elite system from a friend and after a few days it crapped out on me. Since he still has the system registered with Microsoft, he told me he would refund my money and send it in to them to get it repaired as it's under warrenty still (E 74 error, less then a year old).

 

But he sold me everything with them system -- a 120 gig HD, the controller, the HDMI cable, and other stuff. I told my friend to be fair that I would let him keep some money for thea accsories and I'll just buy a new Arcade model.

 

Can anyone help with used prices for the following parts:

 

120 Gig HD

Regular Microsoft headphones

HDMI Cable